Why is it against the law for a man living in Delhi to be buried in Mumbai?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

What have one eye but still cannot see?

You are offered an opportunity to win a fortune. There are 100 precious black stones and 100 unworthy white stones. There are two different sacks labelled as "Heads" and "Tails". You can distribute the stones as you wish. Then a coin will be flipped. Then you will have to choose a stone from the corresponding sack. If you pick up a black stone, all the fortune of black stones is yours but if you pick up white, you get nothing.

How will you distribute the stones so that you can maximize your chances of winning?

By adding four matchsticks, can you divide the square shown in the picture into two equal parts?

Find the number of squares in the below-given picture.

What is the next number?

77, 49, 36, 18 ?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

What is the word or phrase?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C